Door-controlling valve device



Feb. 24, '1931. u. A. WHITAKER DOOR CONTROLLING VALVE DEVIQE Filed Nov.1, 1929 Ill/IAWl/z.

I ZLI/ 40/ 033 0 mmaom w INVENTOR UNCAS A.WH|.TAKER ATTORNEY PatentedFeb. 24, 1931 amen;

UNCAS A; .WHITAKER, or cAN'roN, onto, ssIsNoa" TO; THE WESTINGHOUSE AraBRAKE COMPANY, or sYLvANIA iwrnnnnnmo, PENNSYLVANIA, GQBIE'ORATION- orPENN;

nooR-oo rRoLLrNd vALvn onivron Applicationfiled lq'ovember 1', 1923;Serial No. roan-3a V This invention relates to door controlling devices,and more particularly'to the means for controlling a plurality-of doorsofa vefhiclez'i Y Q 1 5 v vehicles, and particularly those employed inpassenger service,'a'plurality of doors are provided, such as a front orentrance door and a fear or exit door, and under vary-. ingconditions,of.service,.there are times when w it is desirable to openandcloseone or the other of these doors, and other times when it isdesirable tosimultaneously open and simultaneously close both doors.

For the purpose of controllingthe'operation of the doors, a controlvalvedevice is provided, infwhich, ithas heretofore been'the practiceto formand arrange the several c. operating' parts in such a mannerthat all ofthe door opening positions will be at one side of thedoors closedposition. This arrange vment ofthe door controlling positions has beenfound to be objectionable, in that, when I the front door open positionis arranged in advance of the rear'door-open position and the operatordesires to open the rear'door only, the controlvvalve device mustbeoperated through the front door open position, causing an undesiredandunnecessary opercase the control valve device is operated slow- 1ythrough the front door open position, the front door'may beunintentionally opened or partly opened. When the control valve devicehas been operated to rear door .open position, the front door operatingmechanism vibrating the door, causing undesired and unnecessary noise. rThe principal objectof my invention is to' provide a door controllingValve device by which the doors "of a vehicle may be selectivelycontrolled .a-nd which will be free from the above mentionedobjectionablefeatures. V

Anotherobjectlof my invention isto provide a vehicle door controllingvalve device having 2. doors closed position intermediate the rear dooropen position open position.

and the front door A'further object of my invention istoprd fluidpressure supply.

superstructure of vide'a door controlling equipment for a vehicle inwhich the; door controlling valve device is mounted on the vehiclefioorwhere it is out of'the operators wayand where it renders theoper'ators cab free'from thecontrol pipes leadingto and from the controlvalve" device.

a diagrammatic view, mainly in section, of a "door-controlling equipmentembodying my in- 1, a front door engine-'2,-a rear-door engine 3 --jOther objects and advantages' will appear I in the following moredetailed description of 'theinventionj V i In theaccompanying drawing:Figure l is As shown in the dravs infeg the equipment 7 may comprise adoor controll ng valve device and a, main reservoir 4; or any otherdesired" The door controlling valve device 1 may comprise a casing whichmay rest on and'be secured to the vehlclefioor in any desired manner,andcontained in this casing is a rotary valve 5, the chamber 6 at thetop of the I rotary valve being constantly connected to p ation of thefront door operating mechanism 30 which tends to open the from door, and1n the main reservoir 4 through a pipe and passage 7.1 i

and rotatably mounted in the casing, is an operating stem 8'." The upperend of this stem extends through and beyond the casing and isoperatively conneoted'tothe lower end of an 7 operating shaft?) which,adjacent its upper closes or tends to close the front door, thus end, isj-ournalled in a bracket 1Q inountedon manner. r I,

Contain'edin a chamber 12 in the [casing of the control valve device, isa' sanding valve 13which is-subj'ect to the pressure of a spring 1% alsocontained in the chamber, said cham her being constantly connected tothe main reservoir passage 7'; 7 7 it The sanding valved?) has a stem 15which extends upwardly through the casing and is :adapted to be engagedby the lower end of an operating rod16' which is slidably mount aSupport 11 m y secured to the -1 the vehicle in any desired -9 v v V v IV 0 ed in the casing and bracket 10. The upper end of this rod 16is-adapted to be operanected to the bracket 10.

- Adjacent its lower end, this rod 16 is provided withacollar 1 8whichis adapted to engage'a lug 19 on the casing to limit the upwardmovement of'the rod and which forms a spring seat for oneend of spring20, the opposite end of the spring being seated on the casing. V

Removably mounted on the upperend of the shaft 9, is an operating member'21 having a hinged handle portion 221 adapted to be operated in ahorizontalplane for rotat ing'the shaft'9 and in a vertical plane forcontrolling the operation of V the sanding bail 17. r -The door engines2 and 3 may be of the usual type and each may comprise a casing:

containing a door opening piston 23 and a:

door closing piston 24:, which pistons are connected together by atoothed bar 25, the teeth of which mesh with the teeth ofa gear seg:ment 26 operatively connected with an operatingshaft 27 ,of-theusualdoor operating mechanism.

" vrirccording to my invention, the doors closed and handle off positionis the same and is between the rear dooropen position and the frontdooropen position, as shown in Fig. 2 of the drawing.

' lVith the door controlling valve device in doors closed position asshown in Figs. land 2, fluid under pressure is supplied from the rotaryvalve chamber 6 to the door closing sides of the door. engines 2 and 3by way of a port 28 in the rotary valve 5 and passages and pipes 29 and30 respectively, andthe door opening sides of the engines are connectedto the atmosphere through pipes and passages 81 and 32 respectively, acavity 33 in the rotary valve 5 and anatmospheric passa-ge'and pipe 34;'With the door opening sides of the door engines vented and the doorclosing sides supplied with "fluid under pressure, both doors will bemaintained closed.

- 7 When it is desired to open the rear door only,t-he control valvedevice is operated toward the left from doors closed position to reardooropen position in which the .door closing side of the door-engine 3is vented to the atmosphereby wayof pipe and-passage30,a cavity 35inithe rotary valve 5and passage and pipe 34, andthe door opening* sideof the-door engine is supplied with fluid under pressure from the rotaryvalve chamber 6 by way-0f a port 36 in-the rotary valve 7 5 and passageand pipe 32.

' open position, the pressure of fiuidinthe 'd'oor closing side of thefront door engine 2 engine is maintained connected to the atmos- Withthe control valve device in rear door r phere throughthe cavity 35 inthe rotary V valve, so that the front door will be main' tive'ly engagedby a bail '17 pivotally contoward the right, from doors closed positiona to front dooropen po's1t1on in which the door closing side of thefront door engine 2 is vented to the atmosphere by way of pipeandpassage 29, a cavity 37in the rotary valve 5 and'passage and pipe34,andthe door-opening side of the door engine 2 is supplied'with Ifluid under pressurefrom the rotary valve chamber fibyway of a port 38in therotary valve and the passage and pipe 31.,

WVith the control valve devic'cin f o open position, the pressure offluid in the doorclosing sideof the 'rear'doorengine is maintained byway of the port 38 in' thefro- A engine is maintained vented to theatmos-i phere byway of the'cavityj37 in the rotary valve, so that the"rear dooris maintained closed. 1

When it is desiredtobpenbothdoors Sl- 'multaneously, the control valvedevice s operated to. doors open position; inpwhich the door closingsides oi-bothdoor'engines are connected to the atmosphere ,by way of acavity '39 inthe rotary valve 5, and fluid under pressure from therotary valvechamsion of the handle causes, the baill'Zrandoperating rod;16,.1to;, move downwardly againstthe pressure of thespringl 20-, umseating thesandmgwalve agalnst the pressure of the-spring 141.;

With the sandingqvalve 13 thusunseated,

fluid under pressure from the valve chamber 12 is'supplied to the usualsand trapspa'st the valve 13 and through apassage and pipe 41,

Upon-the relief of pressure onthelhandle -22,the pressurelofthe; spring20 .causes the rod 16 and bail 17 toy-move upwardly totheirmammal-positions, permitting the pressure of the spring 14 to'se'at and"close ofi the further supplyof fluid under pressure to the. sandtraps."Bymounting the control valve device on the vehicle fioor, the operatorscab will be free from all of the pipes leading to and efrom rthecontrolvalve device thus rovidin 7 v V, a;

'tary valve 6 andthe door opening side of this "her 6 is suppliedto-,-lth'e door opening sides of both engines throughfa port 10 inrther0- 7 more room for the operator to control the operation of the vehicleand rendering the fi cab more sightly.

While one illustrative embodiment of the invention has beendescribed lIldeta1l,'1t is not my ntention to limit 1ts scope to that of the appendedclaims.

Having now described my invention, what is claimed as new and desired tobe secured by Letters Patent, is:

1. The combination with a mechanism for operating a plurality of doorsof a vehicle, of a manually operative device for controlling saidmechanism to selectively operate said doors, said device having aplurality of door opening positions and a door closing positionintermediate two of said'door opening positions in which door closingposition said mechanism is controlled to close any door which is open,said positions being in uninterrupted succession. v

2. The combination with a fluid pressure equipment for operating aplurality of doors of a vehicle, of a valve device operative forcontrolling said equipment to selectively op erate said doors, saidvalve device having two door opening positions and a door closingposition intermediate said door open1ngpos1- 'tions in which doorclosing position said mechanism is controlled to close any door which isopen, said terrupted succession. I

3. The combination with a fluid pressure equipment for operating a frontdoor and rear door of a vehicle, of a valve device having one positionfor controlling said equipment to open said front door and another position for controlling said equipment to open said rear door, and havinga position intermediate the door opening positions for con-y trollingsaid equipment to close either of said doors; e

i. The combination with a fluid pressure equipment for operating a frontdoor and reardoor of a vehicle, of a door engine for operating the frontdoor, a door engine for operating the rear door, and a valve device forcontrollin the operation of said door engines, said valve device havingone position for causing the front door engine to operate to open thefront door and for maintaining the rear door engine inactive to open therear door, a position for causing the rear door engine to operate toopen the rear door and for-maintaining the front door engine inactive toopen the front door and a position intermediatethe door openingpositions for operating the engine which is in door open position todoor closed position and for maintaining both of sa1d engines 111 doorclosed positions.

:5; In a door controlling and track rail sanding equipment for avehicle, the combination with the floor of the vehicle, of a positionsbeing in uninvice operative downwardly to unseat said sanding valve tosupply fluid under pressure to sand the track rails and operative upwardly to permit the sanding valve to seat and close off the supplyofiflu'id under pres sure, and a handle operative in a horizontal planefor 'rotatinmsaid shaft andoper'ative in a vertical plane forcontrolling the operation of said rod.

6. In adoor controlling and track rail sanding equipment fora vehicle,the combination with the floor of the vehicle, of a door controllingvalve device mountedf'on said floor, normally seated sanding valveincluded in sa1d door controlling valve device, a bracket mounted on thevehicle above said valve device, a rotatable shaft operatively connectedto said valve device and journalled in saidbracket, a rod slidably jmounted in said bracket and door controlling valve device operativedownwardly to un "eat said sanding valve to supply fluid under pressuretosand the track rails and operative upwardly to permit the sandingvalve to seat and close of the supply of fluid under pressure, a bailpivotally mounted on said bracket adapted to operativelyengage said rod,and a handle operative-in a horizontal plane for rotating said shaft andoperativein a vertical plane for controlling the operation of said bailand rod. i

'Z. The combination with a fluid pressure equipment for operating twodoors of a venicle, of a valve device for controlling said equipment toopen and close said doors selectively, said valve device having a dooropening position foreach door anda single door closi'ngposition', towhich latter position, said valvedevice isoperative from either dooropening position without passing through any other door controllingposition.

8. The combination with a fluid pressure equipment for operating twodoors of a vehicle, of a valve device for controlling said equipment toopen and close said doors selectively, said valve device having a dooropening position for each door and a single door closing position, inwhich latter position said equipment is operated to close either of saiddoors and towhich said valve device is operative from either dooropening positi on without passing through-the other door openingposition.

"U cAs A. WHITAKER.

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CERTIFICATE OF QORRECTION.

Patent No. l,792,657. 1 Granted February 17, 1931, to

RICHARD PASTERNACK ET AL.

It is hereby certified that the State of Incorporation in the abovenumbered patent was erroneously given as "New York", whereas said Stateshould have been given as New Jersey, as shown by the records ofassignments in this office; and that the said Letters Patent should beread with this correction therein that the same may conform to therecord of the case in the Patent Office.

Signed and sealed this 7th day of April, A. D. 1931.

M. J. Moore, (Seal) Acting Commissioner of Patents.

